<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref } from 'vue'
import { ElMessage } from 'element-plus' //消息提示

//控制注册与登录表单的显示， 默认显示注册
const isRegister = ref(false)
//登录  复用  注册表单的数据模型  复用表单拿数据校验
//定义数据模型
const registerData = ref({
  studentId:'',
  password:'',
  rePassword:''
})
//校验密码的函数
const checkRePassword = (rule,value,callback)=>{
  if (value===""){
    callback(new Error('请再次输入密码'))
  }else if (value !== registerData.value.password){
    callback(new Error('请确保'))
  }

}

//定义表单校验规则
const rules = {
  username: [
    { required: true, message: '请输入用户名', trigger: 'blur' },
    { min: 5, max: 16, message: '长度为5~16位非空字符', trigger: 'blur' }
  ],
  password: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    { min: 5, max: 16, message: '长度为5~16位非空字符', trigger: 'blur' }
  ],
  rePassword: [
    { validator: checkRePassword, trigger: 'blur' }
  ]
}

//调用后台接口,完成注册
import { userRegisterService, userLoginService} from '@/api/user.js'
const register = async () => {
  //registerData是一个响应式对象,如果要获取值,需要.value
  let result = await userRegisterService(registerData.value);
  //  if (result.code === 0) {
  //     //成功了
  //     alert(result.msg ? result.msg : '注册成功');
  // }else{
  //     //失败了
  //     alert('注册失败')
  // }
  // alert(result.msg ? result.msg : '注册成功');
  ElMessage.success(result.msg ? result.msg : '注册成功')
}
//登录功能 存token
import {useTokenStore} from '@/stores/token.js'
import {useRouter} from 'vue-router'
const router = useRouter()
const tokenStore = useTokenStore();
const login = async () => {
  //调用接口完成登录
  let result = await userLoginService(registerData.value);
  // if (result.code === 0) {
  //   alert(result.msg? result.msg: '登录成功')
  // }else {
  //   alert('登录失败');
  // }
  // alert(result.msg? result.msg: '登录成功')
  //把得到响应的token赋值给tokenStort
  tokenStore.setToken(result.data)
  ElMessage.success(result.msg ? result.msg : '登录成功')
  //跳转首页
  router.push('/')
}
//定义函数用来清空函数模型的数
const clearRegisterData = () =>{
  registerData.value={
    studentId:'',
    password:'',
    rePassword:''
  }
}

</script>

<template>
  <el-row class="login-page">
    <el-col :span="12" class="bg"></el-col>
    <el-col :span="6" :offset="3" class="form">
      <!-- 注册表单 -->
      <el-form ref="form" size="large" autocomplete="off" v-if="isRegister"  :model="registerData"  :rules="rules">
        <el-form-item>
          <h1>注册</h1>
        </el-form-item>
        <el-form-item prop="studentId" >
          <el-input :prefix-icon="User" placeholder="请输入学号" v-model="registerData.studentId"></el-input>
        </el-form-item>
        <el-form-item prop="password" >
          <el-input :prefix-icon="Lock" type="password" placeholder="请输入密码" v-model="registerData.password"></el-input>
        </el-form-item>
        <el-form-item prop="rePassword" >
          <el-input :prefix-icon="Lock" type="password" placeholder="请输入再次密码" v-model="registerData.rePassword"></el-input>
        </el-form-item>
        <!-- 注册按钮 -->
        <el-form-item>
          <el-button class="button" type="primary" auto-insert-space @click="register " >
            注册
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = false; clearRegisterData()">
            ← 返回
          </el-link>
        </el-form-item>
      </el-form>
      <!-- 登录表单 -->
      <el-form ref="form" size="large" autocomplete="off" v-else :model="registerData" :rules="rules">
        <el-form-item>
          <h1>时间银行-登录</h1>
        </el-form-item>
        <el-form-item prop="studentId">
          <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.studentId"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input name="password" :prefix-icon="Lock" type="password" placeholder="请输入密码" v-model="registerData.password"></el-input>
        </el-form-item>
        <el-form-item class="flex">
          <div class="flex">
            <el-checkbox>记住我</el-checkbox>
            <el-link type="primary" :underline="false">忘记密码？</el-link>
          </div>
        </el-form-item>
        <!-- 登录按钮 -->
        <el-form-item>
          <el-button class="button" type="primary" auto-insert-space @click="login">登录</el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = true ;clearRegisterData()">
            注册 →
          </el-link>
        </el-form-item>
      </el-form>
    </el-col>
  </el-row>
</template>

<style lang="scss" scoped>
/* 样式 */
.login-page {
  height: 100vh;
  background-color: #fff;

  .bg {
    background:
    url('@/assets/login.jpg') no-repeat center / cover;
    border-radius: 0 20px 20px 0;
  }

  .form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    user-select: none;

    .title {
      margin: 0 auto;
    }

    .button {
      width: 100%;
    }

    .flex {
      width: 100%;
      display: flex;
      justify-content: space-between;
    }
  }
}
</style>